Alarm system.



PATENTED MAY 10, 1904.

ALARM SYSTEM.

APPLIUATION FILED DEC. a1. 1902.

N0 MODEL.

M LY QE mm.

Kl N 1| 4 QTQL IN A 5141 v0 14 lb 1 Elm/Z1 0201M Patented May 10, 1904.

PATENT OFFICE.

FELIX MGGLOIN, OF NEW YORK, N. Y.

ALARM SYSTEM.

SPECIFICATION forming part of Letters Patent No. 759,464, dated May 10, 1904.

Application filed December 31, 1902. Serial No. 137,276. (No model.)

To all whom it may concern.-

Be it known that I, FELIX MoG-LoIN, acitizen of the United States, residing at New York, in the county of Kings, State of New York, have invented certain new and useful Improve ments in Alarm Systems, of which the following is a full, clear, and exact description.

My invention relates to improvements in electrical alarm systems and apparatus, and particularly to a system having substation instruments which may be set into operation from an auxiliary local circuit.

The object of this invention is to provide an instrument which may be operated either on a normally energized or a normally deenergized local circuit and which is of such a construction and arrangement that a series of them may be arranged in a system and any one may be operated without seriously interfering with the operation of any of the others of the series. The instruments themselves are arranged so as to be thrown into a main circuit which in this form is normally energized. Any single instrument may be thrown into operation either manually or from a local auxiliary circuit. When one instrument is thrown into operation, the tripping of an instrument beyond will not in any way in terfere with the operation of the first instrument, since the second will not be energized. This second instrument will also be in a position when the first instrument has ceased its operation and restored the main circuit to its normal condition to then take up its operation and send in the proper alarm. If when one instrument is in operation and another inside of the first be started, then the first instrument will be deenergized and its alarm cease for such time as the inside instrument is sending in its alarm. Upon the cessation of the alarm of the second instrument the first will then again take up its operation and send in its alarm, as before, until it runs down or is otherwiseinterrupted. in this application I have shown a construction which may be tripped from an auxiliary or local circuit either of the energized or deenergized form. It may also be tripped manually.

In the drawings, Figure 1 represents a d iagrammatic view of a system embodying my of this character.

invention. Fig. 2 is a view, largely diagrammatic, of an instrument embodying my invention with a normally deenergized or open 10- cal circuit. Fig. 3 1s a similar view oi a portion of an apparatus on a normally energized or closed local circuit. Fig. 4 is a side elevation of details of the device in slightly-altered position.

In the diagrammatic view of Fig. 1, A indicates a central station. E, B", and B are the substation instruments or signal-boxes. G is an instrument which may be usedin the circuit for testing, as is customary in systems It will be noted on inspection of the drawings that the-operating parts of the instruments, although the main circuit is energized, are not themselvesenergized except when tripped, and even then-only when it is the one tripped nearest central. D is the live wire. The return obviously may be either a ground-return or an all-wire circuit.

In Fig. 2 the wire leading to central A is secured to the pivot of the main switch 1, which normally rests against the contact 2. The circuit thus passes from central, through the switch 1 and contact 2, to the line D, so that the instrument proper is out of the circuit. When the instrument is thrown into operation, the switch 1 is moved to the left and onto contact 3, so that the circuit passes from switch 1 to contact 3 and thence, through the circuit having the make-and-break 4 5 and magnet-coil 6, to the return F. This same movementof the switch 1 breaks the main circuit between contacts 1 and 2. When the circuit is thrown into this condition and the magnet-coils 6 energized, the pivoted armature 7 is drawn over and releases the escapement-fiy 8 of a suitable train of gears. This train-may be driven in any suitable manner by a train of gears from the gears 9 and 10. Upon the shaft of the gear 10 is mounted a disk 11, having a notch adapted to coact with the end 12 of the armature member 7. The signal-wheel 13 is also mounted on the same shaft with the disk 11; WVhen the instrument is energized, either at once or by the restoration of the main circuit to its normal condition, and the armature 7 drawn over, the disk 11 is released, so that it is free to revolve too nearer central. In this particular form herein shown the signal-wheel 13 will send in the alarm Twelve. It is intended that a series of alarms shall be sent in upon one setting of the instrumentsay six, in which case the ratio of the gears and 9 is one to six.

The instrument as shown in this application is designed particularly to be started by an auxiliary or local circuit. In Fig. 2 the local circuit is normally open or deenergized. The closing of the circuit either at F F F &c., by means of a pushbutton, burglaralarm, thermostat, or other device, will energize the magnet 14:, there being a battery G in circuit for this purpose. When the magnet 14 is energized, the pivoted armature 15 will be drawn upward against the action of the spring 16 from the stop 17 against which it rests. This releases the catch 18, which is carried by the switch 1, and the latter being impelled by the spring 19 will be thrown to the left and the instrument thrown into circuit and its operation immediately begun by the release of the armature member 7, provided the main circuit at this point is energized. The instrument as shown in Fig. 2 is in its normal position of rest. When it has once been tripped and the mechanism begins to rotate, turning the signalwheel13 clockwise, it will continue (unless the circuit is deenergized) until the pawl 20, which is carried by the gear 9, has rotated anticlockwise and strikes the end of the switch 1. This will of course throw the switch to the right-hand position and contact 2, thus completing the main circuit for all points beyond and cut the instrument itself out of circuit. It is therefore immaterial whether the local circuit continues to be energized or whether it becomes deenergized. The stop 22 prevents the pawl 20 from rotating too far. The stop 22 and the switch-arm 1 are in different planes, as shown in Fig. 4, so as not to interfere with each other. 7

To set the instrument in a position suitable for a second alarm, it is necessary to wind up the clock mechanism by means of the stem 21 to its position shown in Fig. 2, where it is ready for further operation. It will be noted that the instrument will cease to send in an alarm when it has revolved so as to take the pawl 20 from the position shown in full lines to the position shown dotted. The instrument will also be temporarily thrown out of circuit when the main circuit becomes deenergized in of an inside instrument. The instrument may be started not only by the local circuit, but by elevating the armature 15 by means of the handle 23. Obviously the armature 15 will be thrown into the position shown in Fig. 2 as soon as the switch 1 is moved to the right by means of the pawl 20.

In Fig. 3 the construction is somewhat similar, but provides for a normally energized local circuit. The magnet 14 being normally energized holds the armature 15 up into the position shown in Fig. 3. When the circuit is broken at H H, &c., by any meansas, for instance, a manually-controlled -means, thermostat or burglar-alarmthe armature 15 will be immediately released, pulled down by the spring 16, and rest against the stop 17 Immediately the switch member 1 will be thrown to the left by means of the spring 19 and the circuit established through contact 3, as in Fig. 2.

The same instrument may be used on a closed or open local circuit by simply adjusting the catch 18 to a position corresponding to the desired position of rest of the armature member 15. The catch for this purpose is in the form of a block guided at one end in a slot in the switch-arm 1 and secured to the arm by a screw or any other suitable means.

If the instrument is tripped manually, the alarm will be sent in in the same manner as if tripped electrically, and it will be impossible to actuate the handle 23 again until the alarm has ceased,because of the catch 18, which will check the armature 15. Of course the instrument will not operate then until wound up to the position shown in full lines in Fig. 2.

What I claim is- 1. In asignal instrument in combination, an instrument-circuit, a signal-wheel controlling the same, a magnet in said circuit controlling said signal-wheel, a switch for connecting said instrument-circuit with a source of electricity and simultaneously disconnecting all outside points, a local circuit, and an electromagnetic device in said local circuit for controlling said switch.

2. Ina signal instrument in combination, an instrument-circuit, a signal-wheel controlling the same, amagnet therein controlling said signalwheel, a switch for connecting said instrument-circuit with a source of electricity and simultaneously disconnecting all outside points, a local circuit, an electromagnetic device therein for controlling said switch, means for antomatically restoring said switch to its normal position so as to disconnect said instrumentcircuit and reconnect all outside points after a predetermined operation of said signalwheel.

3. In a signal instrument in combination, an instrument-circuit, a signal-wheel controlling the same, a magnet therein controlling said signal-wheel so as to release it when energized,

for any reasonfor instance, by the cutting l means to cause said signal-wheel to stop in a definite position when the magnet is denergized, a switch for connecting said instrumentcircuit with a source of electricity and simultaneously disconnecting all outside points, a local circuit, and an electromagnetic device therein for controlling said switch.

4. In asignal instrument in combination, an

instrument-oi rcuit, make-and-break con tacts therein, a signal-wheel making and breaking the instrument-circuit at said contacts, a magnet in said circuit for releasing said wheel when energized, means for causing said wheel to stop in a definite positionwhen the magnet is deenergized, a switch for connecting said circuit to the main line and disconnecting outside points, a local circuit, and an eleetromagnetic device in said local circuit for operating said switch,

5. In asignal instrument in combination, an instrument-circuit, make-and-break contacts therein, a signal-wheel making and breaking the instrument-circuit at said contacts, a magnet in said circuit for releasing said wheel when energized, means for causing said wheel to stop in a definite position when the magnet is deenergized, a switch for connecting said circuit to the main line and disconnecting outside points, a local circuit, an electromagnetic device in said local circuit for operating said switch, and means for automatically restoring said switch to normal position after adelinite operation of said signal-wheel and. thereby disconnecting said instrument-circuit from the source and reconnecting outside points to the source.

6. In a signal instrument, the combination of an instrument-circuit, a switch for connecting the same with the source and disconnecting outside points, a local circuit, an electromagnetic device in said local circuit for operating said switch to make said connection and disconnection, means for automatically restoring said switch to normal condition and thereby cutting said instrument-circuit from the main line and reconnecting outside points upon the completion of a predetermined operation of said signal-wheel.

7. In a signal instrument, the combination of an instrument-circuit, a signal-wheel forming a part thereof, contacts in said circuit controlled by said wheel, a clock mechanism for operating said wheel,a magnet in said circuit for controlling said clock mechanism, a switch for connecting said circuit with a source of current and disconnecting outside points, a local circuit, an electromagnetic device in said local circuit for operating said switch, and mechanical means operated by said clock mechanism for automatically restoring said switch to normal condition after a predetermined operation of said instrument and thereby disconnecting said instrument-circuit from the line and reconnecting outside points.

8. In a signal instrument, the combination of an instrument-circuit, contacts therein, a

signal-wheel controlling said contacts, a clock mechanism operating said wheel, a magnet 1n said circuit controlling said clock mechanism,

ineclianism operating said wheel, a magnet in said circuit controlling said clock mechanism, a switch normally disconnecting said instrument-circuit from and connecting outside points to the source, a local circuit, an electromagnetic device in said local circuit operating said switch to connect said instrumentcircuit with the source and disconnect outside points, and means operated bysaid clockwork for automatically restoring said switch to its normal position.

10. In a signal instrument, the combination of a signal-circuit, a signal-wheel controlling the same, a clock mechanism for moving said signal-wheel, means for locking said signalwheel, a releasing -magnet controlling the same, a spring pressed switch, a springpressed holding device for said switch, an electromagnet cooperating with said holding device so that a change in the normal electrical condition of the magnet will cause said holding device to move and release the switch, and a local circuit for energizing said electromagnet.

11. In a signal instrument, the combination of a signal-wheel, an instrument-circuit controlled thereby, a switch for said circuit, an adjustable stop carried by said switch, a spring pressing said switch, a spring-pressed holding member engaging said adjustable stop, and a magnet for coacting with said holding member to thereby control said instrument-circuit switch.

12. In a signal instrument, the combination with a signal-wheel of an instrument-eircuit controlled thereby, a spring-pressed governing-switch 1 therefor, releasing-magnet 6 therein, means for releasing said springpressed governing-switch and a mechanicallyoperated pawl 20 for automatically returning said switch to normal position.

13. In a signal instrument, the combination with the signal-wheel ol an instrument-circuit controlled thereby, spring-pressed governingswitch 1 therefor, releasing-magnetG therein, means for releasing said governing-switch, magnet 14 actuating said releasing means, a local circuit energizing said magnet 14:, and pawl 20 for automatically returning said switch to normal position after a predetermined operation of said signal mechanism.

14:. In a signal instrun'ient, the combination of a normally energized main circuit, a normally unenerglzed instrument-clrcult, signalwheel therein and controlling the same, a local circuit, a magnet therein, a spring-pressed switch in said main circuit for connecting said instrument-circuit thereto, an armature member coacting with said local circuit, a magnet controlling said switch and normally restraining the same, and means for automatically moving said switch back to its normal position.

15. In a signal instrument, the combination of an energized main circuit, a normally unenergized instrument-circuit, an independent local circuit, an apparatus and mechanism in said circuits whereby a change in the electrical condition of the local circuit will permit the instrument-circuit to be brought under the influence of the main circuit and the main circuit interrupted for more remote points, and automatic means for returning the instrument-circuit to its normal condition after a predetermined operation of the apparatus and mechanism therein.

16. In a signalinstrument, the combination of a main energized circuit, a plurality of signal instruments having independent instrument.

ment-circuits normally unenergized, one terminal of each instrument being connected to the main circuit, an independent local circuit for each signal instrument and an electricallyoperated switch in each instrument and actuated by said local circuit for connecting the second terminal of said instrument to the main circuit and at the same time breaking the main circuit for all outside points.

17 In a signal instrument, the combination of a main energized circuit, a plurality of signal instruments having independent instrumerit-circuits, one terminal of each instrument being conneetedto the main circuit and an electrically-operated switch in each instrument for connecting its second terminalto the main circuit and at the same time breaking the main circuit for all outside points, and means for automatically restoring said electrically-operated switch to its normal position after a predetermined operation of said signal instru- FELIX MoGLOIN. Witnesses:

RoB'r. S. ALLYN,

L. VREELAND. 

